Multi-axis processing machine and rotation center measurement method of multi-axis processing machine

a multi-axis processing machine and measurement method technology, applied in computer control, program control, instruments, etc., can solve the problems of large impact on the processing precision of workpieces, increase in the number of geometric deviations between axes, and occur geometric errors (a geometric deviation). the effect of capital investmen

Active Publication Date: 2021-10-21
SODICK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]According to the disclosure, by executing all of the processing program acquisition step, the processing program analysis step, and the geometric deviation measurement step on the multi-axis processing machine, directions and positions of accurate rotation centers of the rotation axes can be calculated without adding additional equipment, and capital investment can be minimized.

Problems solved by technology

In this five-axis processing machine, due to factors such as an error that occurs during assembly, bending due to a weight of the work piece or the rotation axis itself, displacement due to heat of the rotation axis, and the like, a geometric error (a geometric deviation) occurs in positions, directions, or the like of the rotation centers of the rotation axes.
Furthermore, the number of geometric deviations between the axes increases as the number of axes increases, and processing precision of the work piece is greatly affected.

Method used

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  • Multi-axis processing machine and rotation center measurement method of multi-axis processing machine
  • Multi-axis processing machine and rotation center measurement method of multi-axis processing machine
  • Multi-axis processing machine and rotation center measurement method of multi-axis processing machine

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first embodiment

1. First Embodiment

[0031](1. Overall Configuration of Five-Axis Processing Machine 100)

[0032]A configuration of the five-axis processing machine 100 is described with reference to FIGS. 1, 2 and 3. FIG. 1 is a schematic diagram of the five-axis processing machine 100 according to a first embodiment of the disclosure, and FIG. 2 is a schematic diagram showing an internal structure of the five-axis processing machine 100 according to the embodiment.

The five-axis processing machine 100 is a processing machine that performs control of five axes including three linear axes of an X-axis, a Y-axis, and a Z-axis and two rotation axes, and the five-axis processing machine 100 is a table swivel type that swivels a work piece W together with a tilt table 4. The X-axis, the Y-axis, and the Z-axis orthogonal to each other are set for the five-axis processing machine 100, an A-axis is set as a rotation axis around an axial center that extends parallel to the X-axis, and a C-axis is set as a rotat...

second embodiment

1. Second Embodiment

[0068]FIG. 16 is a block diagram of a five-axis processing system 500 according to a second embodiment of the disclosure. Moreover, in each drawing and each embodiment described in the specification, the same reference signs are given to the same configuration elements, and description thereof is omitted as appropriate.

[0069]The five-axis processing system 500 is configured by an analysis device 400, the CAD / CAM device 200, and a five-axis processing machine 300, and each device is connected via a network 600.

[0070]The network 600 is a communication network such as the Internet, LAN, or the like, and transmits information by wire or wirelessly.

[0071]The analysis device 400 is a device that acquires the processing program 201 from the CAD / CAM device 200 via the network 600, calculates measurement angles for each rotation axis from the processing program 201, and transmits the measurement angles to the five-axis processing machine 300.

The analysis device 400 includ...

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Abstract

The disclosure is a rotation center measurement method of a multi-axis processing machine which relatively moves tables on which a work piece is placed and a tool for processing the work piece by control of rotation axes based on a processing program, and the rotation center measurement method is characterized to include: a processing program acquisition step in which the processing program is acquired; a processing program analysis step in which command angles of tool postures are read from the processing program and analyzed, and measurement angles are calculated based on the analysis results; and a geometric deviation measurement step in which a reference sphere is placed on the tables and the tables and the tool are relatively moved to measure a position of the reference sphere, and directions and positions of rotation centers of the rotation axes are calculated.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the priority benefits of Japanese application no. 2020-072646, filed on Apr. 15, 2020. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.BACKGROUNDTechnical Field[0002]The disclosure relates to a multi-axis processing machine and a rotation center measurement method of multi-axis processing machine capable of accurately measuring a geometric error of a rotation axis.Related Art[0003]Conventionally, a multi-axis processing machine is known which brings a tool close to an object to be processed (hereinafter referred to as a work piece) from a plurality of angles and processes the object to be processed into a complicated shape. For example, a five-axis processing machine such as a machining center or the like which is configured by three linear axes and two rotation axes includes tables which rotate around an A-axis and a C-axis, and...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G05B19/404B23Q15/12
CPCG05B19/404G05B2219/50062B23Q15/12
Inventor KAWASAKI, MICHIHISAYOKOTA, SHOYAAMBAI, MUNETAKA
Owner SODICK CO LTD
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